/Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/Sampling/MeshSurfaceSampler.h
Fill in the given SampleInfo for the given UV location in the given UVTriangleID.
If the query location is not on a triangle in the Mesh then return false (SampleInfo will be invalid)
virtual bool QuerySampleInfo ( int32 UVTriangleID, const FVector2d & UV, [FMeshUVSampleInfo](API\Plugins\DynamicMesh\Sampling\FMeshUVSampleInfo) & SampleInfo )